finding the position of values in a matrix

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sampath kumar punna
sampath kumar punna on 30 Oct 2019
i have set
X=[
12 14
1 2
12 4
6 14
12 18
12 4
1 2]
Y=[
1 2
1 2
6 14
12 4]
can i get the position of Y elements in X matrix as the number are repeated its hard for me to find using code normal code. can any one please help me.

Answers (1)

galaxy
galaxy on 30 Oct 2019
Try
[~,idx]=setdiff(X,Y,'rows');
idx_rows=setdiff(1:size(X,1),idx);
idx_rows =
2 3 4 6 7
  3 Comments
sampath kumar punna
sampath kumar punna on 30 Oct 2019
yes X and Y have same values but Y is not having all values of X only few values are in Y, so for those some values in Y, what is the position in X.

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